Convertible steam car heater



11.5.6013). CONVERTIBLE STEAM GAR HEATER.

APPLIOATION FILED MAY 20; 1910.

Patented Apr. 30, 1.912.

4 SHEETS-SHEET v1.

WITNESSES: Z

E. E. GOLD. CONVERTIBLE STEAM'GAE EEATEE. APPLIOATION FILED MAY 20. 1910.

E 1,024,626. Patented Apr. 30, 191.2-

4 SHEETS-SHEET 2.

E INVENTQR zl .WITNESSES v owzeg'w,

E. E. GOLD.

- EONVBRTIBLB STEAM CAR HEATER.

APPLICATION FILED MAY zo, 1910. I A

PatentedApr. 30, 1912.

XNVE'NTOR 1 4 SHEETS-SHEET a.

E. E. GOLD. CONVERTIBLE STEAM GAE HEATER.

- APPLICATION FILED MAY 20! 1910. l

v Patented Ap1n30, 1912.

WITNESSES:

A To all whom tima/y concern:

, EDWARD E. GOLD, OF NEW YORK, N. Y.

CONVERTIBLE STEAM CAR-HEATER.

Specification of Letters Patent.

Patented Apr. 30, 1912.

application ined May 2o, 1910. sei-iai No. 562,397.

Be it known that I, EDWARD E'. GOLD, a

citizen ofthe United States, residing in the` borough of Manhattan, city, county, an State of New.lYork, have invented certain new and useful Improvementsin Convertible Steam Car-Heaters, of which the following is .a specification.

- tion,

This invention aims to 'provide a steam heating *system and features of construction thereof especially adapted to the heatingrot railway trams, and especially adapted to convertible or interchangeable systems which may be operated either as pressure systems or as'vap'or systems at will.

The accompanying drawings illustrate embodiments of the invention.

Figure 1 isa view in perspective of the principal parts of the apparatus in connection with a radiator at one side of a car; Fig.. 2 is a lbfigitudinal section of the discharge end of said radiator on the line 2-2 of Fig. 5; Fig. 3 is a plan partly in section, of the' valve of Fig. 2; Fig. t is a'section similar to Fig. 2 showing a slight variation in the construction of the lower part of the discharge pipe; Fig. 5

and Fig. 6 aside elevation of the mechanism shown in the lower part of Fig. 9.; Fig. 7 is an enlarged elevation ofthe valves and connected parts of Fig. 1 partly in section; Fig. S is an enlarged horizontal section of the valve of of said figure.

Referring to the embodiments of the invention illustrated, the train-pipe A runs the length of the car underneath the floor,

and is iilled with steam at a pressure reducedV from that in the boiler, and leads by branches' to radiators at opposite sides of the car. ln each of the branches B is an automatic admission valve C, from which a vertical pipe D. extends upward through the {ioor E of the car to a hand admission valve F, whence the steam passes to the inlet pipe Grof the radiator, and thence to the return pipes H, and by an approximately horizontal loop 'J to the discharge mechanism, whence it is discharged into the openair. In the discharge mechanism `there are two outlet passages, one of which conducts the steam to a thermostat indicated as a whole by the reference letter K, which valve C, and the other of which leads to the atmosphere without contact of the steam is a horizontal sec.

Fig. 2 on the line 8-8- ling inward against the governs the automatic admissionV with the thermostat. The selection Aof the passage through which the steam or water of condensation is discharged, is under control of the valve L within the car.

As shown in Fig. 2, vthe valve Lis arranged to conduct the vsteam to the thermostat K when the valve' is opened; or, when .the valve is closed, to restrict the outlet opening to such an extent as to permitl the dischargeoi:1 water of condensation with little or no discharge of steam, so as to mainthat when the valve is opened the system operates as a vapor system, and when the valve is closed it operates as a pressure system. I

vtain a pressure of steam inthe radiator; so

The pipe M leading from the loop J en- I ters the side of the valve casing, and the steam and water pass' downward through the valve seat N into an outer pipe O, upon the lower end of 'which is a fitting P including (or thermostat, and having two lateral openings, the upper one leading to the ,thermostat and the latter 'leading therefrom to a trumpet-shaped extension R designed to conduct the steam a suitabledistancev below the car; the two openings being divided by a' transverse diaphragm S across the pipe portion of the fitting P, and extending substantially to the expansible vessel T of the thermostat, so as to cause the steam to circulate about the expansible vessel.

For shutting .oi the escape of steam into the outer pipe O, there is provided a valve attached to) the casing Q of thel proper U adapted to resty on the seat N, and

having stem V with a thread of high pitch,

lso that with less than a complete turn of the stem the valve may be shifted from its open to its closed position. The stem is provided on its upper end with a handle, and with a pointer VV-which serves also as an impositive lock, beingmaole of spring metal and pressboss X or other part of the valve casing. with faces Y and Y (Fig. 3) upon which the locking pointer W presses in its two opposite positions, and the inclination of which is such as to tend to force the pointer W farther in the direction in which it hasbeen turnedpthus impositively forcing and, holding the valve in either its `open or its closed position. p

AThe valve U is provided with an opening Z through lits center to which'the steam Ahas access by way of smallports a in a Harige b 10()` The boss is provided ticles of dirt.

projecting upivardlyftrom the valve. The stein V is engaged with the valve h v means ot a collar o' at its lower end adapted to strike the top of the valve U or, when raised to strike the lower end ,ot a sleeve Z screwed into the flange b. The collar e is provided with a tine slot c extending therethrough so as to permit the passage otwater through the openings i and the opening Z when the collar is down upon the top of the vali' On the under side of the collar c is a tapered extension f loosely fitting the Flared top ot the opening Z hut not interfering with the passage ot' Water therethrough. The purpose of the extension f is to'elear the opening Z of any dirt and to keep it clean so zs to permit a tree How of water therethrough. The vertical movements et' the valve stem will increase and decrease the area of the restricted opening and the rotary movements will insure the removal of any pau This constitutes a continuously open drip oriliee. The water of condensation passing therethroiilgh ente-rs a small central tubular extension g oit the valve proper, which slides through a ring /t concentrically .located in the lower part of the valve casing, and which carries an inner discharge tube j passing through the diaphragm S. This pipe j therefore constitutes the only discharge pipe when the system is working under pressure. lllhen the system is Working as a vapor system the discharge majr take placethrough either the inner pipe j or the outer pipe @,'the opcnings to these pipes heing proportioned.to cause the discharge of sull'ieient steam through the outer pipe O to secure the desired rapidity ot operation of the thermostat. The construction of the diaphragm S permits the securing` 'of a good lit. for the inner ltube j hy screwinginto the diaphragm an accurately7 machined ring Z (Fig. 2).

Instead of providing tor a single discharge point, the disclnirge from the drip pipe and that from the thermostat ma)7 he separated as in Fig. 4t. ln this case the outer pipe O carries a fitting mi which is closed at its lower end around the inner pipe j, and which has a single lateral opening connecting hy a short pipe n. with the casing o ot' the thernmstat7 which casing is open at, its lower end for the discharge ol" the steam or water through a second triunpet extension R.

The thermostat is preferably exposed largely to (the. atmospheric air, a nd for this purpose the casing is provided at each side` near the top with a ventilating opening` y1 across which is a tine wire screen'fj, and over the discharge of which is fastened a hollow cover o' p'roif'ided, as shown best in Fig. T, with toothed side edges and an entirely open g lower edge so as to permit free circulation oil l air andat the Same time to retard the enl :noaa

a holt ir carried in the trance ot dirt. The .motion oit' the train and the location ot these two openings at; opposite sides, trout and hack, of the casing, insures a considerable circulation of air through from one to the other. 'lllhere is also a circulation ol" air induced. upward into the casing and out through the opeuings` which are located near the top ot' the easing,-hy reason of the warmth therein as eon'ipared with the temperature of the outside air. This ventilation is an important t `ture inl insuring a quick response olI the t. A.mostat to the ccolii'ig air as soon as the. steam ceases to tlow against it, and a consequent quick reopening oit the admission valvet'o let in more steam, so that there shall be as nearly as possible a supply7 ot steam .in the radiating pipes continuously from end to. end.

he automatic admission. vi lve C is indicated in horizontal section inf Fig. C and is ol a construction described :in previous ap plie-ations of mine. The thermostat easing has an extension s which is fastened to the easing of the valve Q and the vali e stem Z' passes outet the casing through a .stalling hos: and into the thermostat casing, where it carries a` head u engaging the inner tace of the exiiansihley vessel T, the opposite `tace of which is held stationary h v ahead o on outer tace plate c ot' the thermostat casing. The holt in is adjustahle .troni the outside h v a notch in its end, and is set in. position h v a nut y/ within the casing and not readil)f accessihlei so that. there is no likelihood of its heilig tampered with after the thermostat is once properl)r set. rlhe outer wall ai ot the casing` is iu fact a door hinged at on a lug'on the side ofthe fitting l?, which constitutes part ot the casing Q. of the thermostat'. ",lho door is latehed by a link and eccentric latch indicated at 2.

Instead et the drip valve merlnuiisin of Fig. Q tor closing the outlet sullieiently to maintain pressure iu the rzuliator, airy usual or suitahle pressure iuetfhanism ina'v ,he suhstituted.

The deserilad arrangement ol the casing oi" the thermostat l( with a' door ou the ont side, is ot particular value in increasing the convenience with which the apparati.. :hay he attended to tor repairs or renewals. lt the thermostat is worn out or otherwise de Ytective, the system n'iav he set .tor pressure operation, whereupon can he opened aud the therinostatic vessel re- Imoved aud replaced hv a new vessel. This ma)v he loue during the run ot a train, tal"- ing out the old expausilile vessel and leaving it out until it is convenient to put in a new one. The system heilig set for pressuwe5 there is no escape ol s cam through the thermostat chalutier, and the parts 'are cool ouougrh to he handled. The saine :facility ot awess is provided 'tor the two @Xpansiliile the thermostat casing vessels of Fig. 8 or of Fig. 9, by shifting the course of the discharge awa-y from the Vessel which is to be repaired or renewed or Withdrawn. y

lVhat I claim is A steam hea-ting system for cars including in combination a radiator, a train pipe, a branch pipe leadingfrom the train-pipe to the radiatoigan automat-icadmission Valve C in said branch pipe, a discharge pipe M from said radiator, the system having two outlet passages from said discharge pipe, a thermostat K actuating said admission valve and. including an expansible vessel exposed to the action of the discharge through one of said out-let passages,lthe second outlet passage comprising aconduit extending within the first-named passage to a point beyond said expansiblevesseh ahand-operated discharge ivalve Which When opened scribing Witnesses.

permits the steam to discharge freely through said first-named passage and to operate said thermostat,' and which when y closed cuts ofi' the steam from the thermostat, said .hand-operated discharge valve having a restricted drip oricewhich communicates with said second passage and which is always open through said discharge valve so 'as to permit `the escape of Water Wit-hout substantial loss of steam and Without effect upon the' thermostat when said Valve is closed.

In witness whereof, I have hereunto signed my name in the presence of tWo sub- EDWARD E. GOLD.

l/Vitnesses:

D. ANTHONY UsINA, F RED VHITE.

Copies of this patent may be obtained for ve cents each,`by addressing the Commissioner of Patents,

y Washington, D. C. v 

